<feat>(all): adding configuration files

assets/css/blog.css

@@ -0,0 +1,103 @@
+*, *::before, *::after {
+  box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+}
+
+body {
+  background: #fff;
+  font-family: 'Source Sans 3', Georgia, sans-serif;
+  color: #111;
+  font-size: 15px;
+  line-height: 1.6;
+}
+
+.page {
+  max-width: 780px;
+  margin: 0 auto;
+  padding: 3rem 2.5rem 5rem;
+}
+
+.back {
+  position: fixed;
+  top: 1.2rem;
+  left: 1.5rem;
+  font-family: 'Source Sans 3', sans-serif;
+  font-size: 0.72rem;
+  font-weight: 600;
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
+  text-decoration: none;
+  color: #aaa;
+  transition: color 0.15s;
+  z-index: 101;
+}
+
+.back:hover {
+  color: #111;
+}
+
+.page-header {
+  margin-bottom: 1.5rem;
+}
+
+.page-header h1 {
+  font-family: 'EB Garamond', Georgia, serif;
+  font-size: 2rem;
+  font-weight: 600;
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
+  color: #111;
+  margin-bottom: 0.3rem;
+}
+
+.page-header .subtitle {
+  font-family: 'EB Garamond', Georgia, serif;
+  font-size: 1rem;
+  font-style: italic;
+  color: #666;
+}
+
+hr.thick {
+  border: none;
+  border-top: 2px solid #111;
+  margin: 1rem 0 0;
+}
+
+.placeholder {
+  margin-top: 3rem;
+  padding: 2rem 0 2rem 1.5rem;
+  border-left: 2px solid #111;
+}
+
+.placeholder-status {
+  font-family: 'Source Sans 3', sans-serif;
+  font-size: 0.72rem;
+  font-weight: 600;
+  letter-spacing: 0.18em;
+  text-transform: uppercase;
+  color: #aaa;
+  margin-bottom: 0.75rem;
+}
+
+.placeholder-message {
+  font-family: 'EB Garamond', Georgia, serif;
+  font-size: 1.1rem;
+  font-style: italic;
+  color: #555;
+  line-height: 1.7;
+}
+
+.page-footer {
+  margin-top: 3rem;
+  padding-top: 0.65rem;
+  border-top: 0.5px solid #ccc;
+  display: flex;
+  justify-content: space-between;
+  font-size: 0.72rem;
+  color: #aaa;
+}
+
+@media (max-width: 560px) {
+  .page { padding: 3rem 1.5rem 4rem; }
+}